National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fog/Mist

34°F

1°C

Humidity 100%
Wind Speed E 3 mph
Barometer 29.77 in (1009.0 mb)
Dewpoint 34°F (1°C)
Visibility 3.00 mi
Last update 5 Jan 9:51 pm CST
Extended Forecast for

Round Lake Park IL

  • Tonight

    Tonight: A slight chance of drizzle after 4am. Patchy fog after midnight. Otherwise, cloudy, with a low around 34. East southeast wind around 5 mph becoming northeast after midnight. Winds could gust as high as 10 mph.

    Low: 34 °F

    Cloudy then
    Slight Chance
    Drizzle and
    Patchy Fog

  • Tuesday

    Tuesday: A 40 percent chance of rain before noon. Areas of fog before noon. Otherwise, cloudy, with a high near 42. North northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 42 °F

    Chance Rain
    and Areas Fog
    then Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 30. West wind 5 to 10 mph.

    Low: 30 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 44. West wind 5 to 10 mph becoming south in the afternoon.

    High: 44 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 35. South southwest wind around 5 mph, with gusts as high as 15 mph.

    Low: 35 °F

    Partly Cloudy

  • Thursday

    Thursday: A 50 percent chance of rain after noon. Mostly cloudy, with a high near 48.

    High: 48 °F

    Partly Sunny
    then Chance
    Rain

  • Thursday Night

    Thursday Night: Rain. Low around 41. Chance of precipitation is 80%.

    Low: 41 °F

    Rain

  • Friday

    Friday: Rain likely. Mostly cloudy, with a high near 45.

    High: 45 °F

    Rain Likely

  • Friday Night

    Friday Night: Rain likely, mainly after midnight. Mostly cloudy, with a low around 33.

    Low: 33 °F

    Rain Likely

Detailed Forecast

Tonight
A slight chance of drizzle after 4am. Patchy fog after midnight. Otherwise, cloudy, with a low around 34. East southeast wind around 5 mph becoming northeast after midnight. Winds could gust as high as 10 mph.
Tuesday
A 40 percent chance of rain before noon. Areas of fog before noon. Otherwise, cloudy, with a high near 42. North northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Tuesday Night
Mostly cloudy, with a low around 30. West wind 5 to 10 mph.
Wednesday
Mostly sunny, with a high near 44. West wind 5 to 10 mph becoming south in the afternoon.
Wednesday Night
Partly cloudy, with a low around 35. South southwest wind around 5 mph, with gusts as high as 15 mph.
Thursday
A 50 percent chance of rain after noon. Mostly cloudy, with a high near 48.
Thursday Night
Rain. Low around 41. Chance of precipitation is 80%.
Friday
Rain likely. Mostly cloudy, with a high near 45.
Friday Night
Rain likely, mainly after midnight. Mostly cloudy, with a low around 33.
Saturday
A chance of rain and snow before noon, then a chance of snow. Mostly cloudy, with a high near 36.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 21.
Sunday
Partly sunny, with a high near 29.
Sunday Night
Partly cloudy, with a low around 21.
Monday
Mostly sunny, with a high near 37.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Round Lake Park IL
 42.33°N 88.05°W
Last Update:
8:11 pm CST Jan 5, 2026
Forecast Valid:
9pm CST Jan 5, 2026-6pm CST Jan 12, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation